So, I am still 
having fun going through my stash of agates. I have quite a few small (1 to 2 inches) naturally colored pieces that came as 200 pieces in a sealed bag, and some larger ones (3 to 4 inches) both colored and natural that I have handpicked.
I have sorted them by color and opacity and started to come up with various designs such as business card holders and night lights.
I am having a lot of fun doing that, I am on the roll and have no plans of stopping. I love just moving pieces around until they fall into a design on their own - just like these geode flower night ligts on the left.